CN101438115B - Refrigeration device - Google Patents

Abstract

The invention relates to a refrigeration device comprising an inner chamber that is delimited by an inner shell, an outer shell (1, 2) and an intermediate chamber that is arranged between the inner shell and the outer shell and that is filled with an insulating foam. Said refrigeration device also comprises a device for mounting electrical components and/or switches and/or displays, and a housing (15) equipped with an opening for mounting on a cut-out section (3) in the outer shell (1) and a front panel (4) for covering said cut-out section (3). According to the invention, the housing (15) lies in a gap and is supported on the inner face of the outer shell (1).

Description

Refrigerating plant

Technical field

The present invention relates to a kind of refrigerating plant.

Background technology

In modern refrigerator or vertical household freezer, display device and control element are integrated in the panel of a top.Corresponding electric device is contained in the housing.This housing is sealed by front panel, and is inserted through in the chamber of inner cavity chamber top that notch portion in the shell of refrigerating plant enters refrigerating plant.Front panel is fixed on the shell with housing then.

Particularly in order to save manufacturing cost, just the required heat insulation layer formation of only when all members all are mounted, foaming around the inner cavity chamber of refrigerating plant.In this way, needn't in the foam of sclerosis, produce cavity and come installation component.

Verified, heat insulation foam has to inject with very high pressure, and making apart from the zone of some distances of injection point also can be by filling foam reliably.Only in this way, can guarantee good insulation effect.When with foam-filled intermediate space, the high pressure that produces between inner casing and the shell can make heat insulation foam be pushed through the notch portion between shell and the front panel, or even may cause that housing is pushed outwards moving.Also exist foam to infiltrate the danger of housing in front between plate and the housing, can destroy the member that wherein holds like this.

Summary of the invention

The objective of the invention is can prevent that foam from flowing out but do not need to make the mode of this measure that manufacturing cost increases to construct a kind of refrigerating plant.This purpose also comprises and prevents that foam from infiltrating housing and destroying the member that is contained in wherein.

According to the present invention, above-mentioned purpose realizes that by a kind of refrigerating plant described refrigerating plant has: by the inside of inner casing gauge; Shell; Intermediate space, described intermediate space is arranged between inner housing and the shell body, and the filling heat insulation foam; And the device that is used to install electric device and/or switch and/or display device, described device has housing and the front panel that has opening, described housing is used for being assemblied in the notch portion of shell, described front panel is used for the cover cap notch portion, it is characterized in that, housing is arranged in intermediate space, and is supported on the inner face of shell.Because housing is supported on the inner face of shell, therefore housing is squeezed in contact pressure on the inner face of shell and is applied to the increase of the pressure on the housing along with foam and increases.Therefore, when foam pressure increased, any gap that may exist between the inner face of housing and shell all can reduce.Thereby housing obtains increasing with the seal that is connected between the shell.

In order to guarantee enough seals, housing is provided with the annular lip around opening.Produced the contact surface of sealing around this notch portion in shell, by described contact surface, housing forms the surface contact.

According to the present invention, the edge of the notch portion in shell has the card of inside sensing.Corresponding opening is arranged in the housing, makes housing to be pulled on the card, thereby prevents to get loose.Particularly very important when filling intermediate space with heat insulation foam.Housing must remain fixed in place, although the pressure condition that exists fluctuation to change in this stage.Like this, when middle space had been filled foam and foam and has hardened, housing was squeezed on the shell from behind, and no longer can separate from card.It is cocksure fixing that this can make housing realize in intermediate space, and do not need other fixture, for example screw etc.

For can near electric device, the current supply cable of switch and display device is directed to outside the housing, is being provided with the cable passage on the boundary wall of back.This passage is the unique opening that leads to intermediate space that housing has.Therefore, in filling process, this is the unique opening in the heat insulation foam infiltration housing that can pass through.In order to prevent this situation, the assembly parts of being made by compressible material are provided, described assembly parts can be used for sealing the cable passage.Assembly parts have seam, make it to be placed on the cable and to insert in the passage via described seam.The elasticity of compressible material makes assembly parts can make on the inwall that oneself accurately is coupled to passage and the shape of adaptive cable, thereby realizes sealing reliably.

Front panel has been filled with foam and housing at intermediate space and has assembled after being fixed in relevant mode.Front panel is by touching on the outside of shell.According to the present invention, the hole is set in housing, make front panel to be connected to housing with thread connecting mode by notch portion.This means, in shell, do not need the other through hole that supplies screw to pass through.

Electric device and/or switch and/or display device advantageously are assemblied on the front panel.When front panel is assembled, make front panel in place before, this moment only need be by means of plug connector connecting line in housing.

Be provided with recess in the plate in front, the insert that is used for the mark of switch and display device can insert described recess.Therefore, front panel is applicable to a plurality of dissimilar inserts, wherein, only need provide corresponding mark insert at every type.

Description of drawings

Referring to accompanying drawing exemplary embodiment is described in detail, accompanying drawing comprises:

Fig. 1 shows the exploded view of device of the present invention; And

Fig. 2 shows the upward view of intermediate space before its filling foam.

The specific embodiment

Fig. 1 shows the module of the shell of refrigerating plant, comprises the forward part 1 and the lid 2 of shell.Notch portion 3 is located in the forward part 1.Card 14 is positioned on the lateral edge of notch portion 3, and housing 15 can be pulled on the described card 14.

The module 1,2 of shell is made of metal one.Notch portion 3 is stamped out under the situation of considering card 4.Forward part 1 and the edge that covers between 2 can produce this moment, and card 14 can be crooked backward.

Electronic module 6 comprises electronic controller and the display device LED that is used for refrigerating plant.Electronic module 6 is installed on the front panel 4.Equally, switch 12 and 13 is installed in the front panel.Insert 5 with the mark that is used for display device and switch inserts recess 10, and for example by means of being adhesively fixed.For the illumination that makes display device LED in insert 5 as seen, optical waveguide 11 is provided, described optical waveguide 11 forms optics and is connected between electronic module 6 and insert 5.

The open side of housing 15 (Fig. 2) is provided with annular lip 19, in case when housing has been pulled on the card 14, makes the annular lip 19 and the inner face of forward part 1 form the surface and contact.In this installment state, housing 15 top by touching on the lid 2 of shell.

Passage 16 is positioned on the back of housing 15, and current supply cable is directed out housing 15 by described passage 16.This passage 16 forms unique connection the between housings 15 and the intermediate space, and described intermediate space is between the inner casing and shell of refrigerating plant, and heat insulation foam is filled in described space after assembling.The assembly parts of being made by compressible material 17 prevent that foam from passing through passage 16 and infiltrating in the housing 15.By means of seam 20, assembly parts 17 can be pushed crosses cable, can insert in the passage 16 then.In order correctly to hold all current supply cables, stitch 20 extensible, in assembly parts 17, to be formed centrally the hole.Advantageously, assembly parts 17 are made by the very large foamed material of elasticity, and described foamed material expands in inserting passage 16 afterwards, and well himself are molded into the inwall of passage 16.Supply lines is encapsulated with sealing means equally.Thereby, can prevent that foam from infiltrating in reliable mode.

In installation process, housing 15 at first is pushed on the card 14 of module 1,2 of shell usually.Then, module 1,2 is positioned on the refrigerating plant, and is connected to the sidewall of shell.Heat insulation foam injects the intermediate space of existing sealing at this moment, and described intermediate space is formed by the inner casing and the shell of refrigerating plant.This foam in intermediate space with high compression swelling, thereby, the annular lip 19 of housing 15 is squeezed on the inner face of forward part 1 securely.This is fixed on the position that it is kept by card 14 with housing 15.Because along with the increase of foam pressure, the power that annular lip 19 is expressed on the periphery of notch portion 3 also increases, therefore prevent reliably foam through any gap between the inner face of annular lip 19 and forward part 1 to exosmosis by notch portion 3.

The insert 5 that is used for mark is existing by the bonding front panel 4 that is installed at.Front panel 4 also is equipped with switch 12 and 13, optical waveguide 11 and electronic module 6.The current supply cable that has been arranged in housing 15 is connected to electronic module 6 and switch 12 and 13 via plug connector.Front panel 14 directly is fixed to housing 15 by means of screw 8.This housing 15 has the screw 18 that is used for this purpose.These screws 18 are arranged in the zone of notch portion 3, and therefore needn't forwardly divide provides any other hole in 1.The hole 7 that is used for passing through for screw 8 in the front panel 4 is counterbores, makes the surface of screw head and front panel 4 evenly stop.For design reasons, screw 8 is cover cap decoction cap 9 additionally also.

Reference numerals list

The forward part of 1 shell

The lid of 2 shells

3 notch portion

4 front panels

5 are used for the insert of mark

6 electronic modules

7 holes that supply screw to pass through

8 screws

9 are used for the decoction cap of screw

Recess in 10 front panels

11 optical waveguides

12,13 switches

14 cards

15 housings

16 cable passages

17 assembly parts of making by compressible material

18 screws

19 annular lip

20 seams

Claims (10)

1. refrigerating plant, described refrigerating plant has: by the inside of inner casing gauge; Shell (1,2); Intermediate space, described intermediate space is arranged between inner housing and the shell body, and the filling heat insulation foam; And the device that is used to install electric device and/or switch and/or display device, described device has housing (15) and the front panel (4) that has opening, described housing (15) is used for being assemblied in the notch portion (3) of shell (1), described front panel (4) is used for cover cap notch portion (3), it is characterized in that, housing (15) is arranged in intermediate space, and is supported on the inner face of shell (1,2).

2. refrigerating plant as claimed in claim 1 is characterized in that, housing (15) is provided with the annular lip (19) around opening, and described annular lip is by touching on the edge of the notch portion (3) of shell (1).

3. refrigerating plant as claimed in claim 1 or 2 is characterized in that, shell (1) has the inside card (14) that points in the edge of notch portion (3), and housing (15) is pulled on the described card (14).

4. refrigerating plant as claimed in claim 1 or 2 is characterized in that, housing (15) has and is used for passage (16) that cable is guided out.

5. refrigerating plant as claimed in claim 4 is characterized in that, assembly parts (17) sealing that passage (16) is made by compressible material.

6. refrigerating plant as claimed in claim 5 is characterized in that, assembly parts (17) have seam (20), and cable is guided out by described sewing.

7. refrigerating plant as claimed in claim 1 or 2 is characterized in that, front panel (4) is by touching on the outside of shell (1).

8. refrigerating plant as claimed in claim 1 or 2 is characterized in that, housing (15) and front panel (4) link together with thread connecting mode by the notch portion (3) in the shell (1).

9. refrigerating plant as claimed in claim 1 or 2 is characterized in that, electric device (6) and/or switch (12,13) and/or display device (6,11) are assemblied on the front panel (4).

10. refrigerating plant as claimed in claim 1 or 2 is characterized in that, front panel (4) has the recess (10) that is used for insert (5), and described insert (5) is kept for the mark of display device and/or switch.